1. The heart is positioned on the left side of the chest within a fluid-filled space called the pericardial cavity.
2. This cavity is enveloped by a protective membrane known as the pericardium.
3. The pericardium, a fibrous membrane, serves as an external covering for the heart.
4. Its primary function is to safeguard the heart by generating a lubricating fluid.
5. This fluid minimizes friction between the heart and adjacent organs.
6. In summary, the pericardium plays a crucial role in shielding and maintaining the proper functioning of the heart.